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Finding the Fourth Proportional to 615,929.40, 924,018.90 and 349,817.40

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Solution

The fourth proportional to 615,929.40, 924,018.90 and 349,817.40 is: 524,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,929.40 : 924,018.90 = 349,817.40 : x
  2. Step 2: Convert to fraction form
    615,929.40/924,018.90 = 349,817.40/x
  3. Step 3: Cross multiply
    615,929.40x = 924,018.90 × 349,817.40
  4. Step 4: Simplify right side
    615,929.40x = 323,237,889,148.86
  5. Step 5: Solve for x
    x = 323,237,889,148.86/615,929.40
  6. Step 6: Final answer
    x = 524,796.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.